Finding the Fourth Proportional to 103,257,849.52, 142,490,422.86 and 56,839,036.96

Step by Step Solution

1. Step 1: Write the proportion equation
   103,257,849.52 : 142,490,422.86 = 56,839,036.96 : x
2. Step 2: Convert to fraction form
   103,257,849.52/142,490,422.86 = 56,839,036.96/x
3. Step 3: Cross multiply
   103,257,849.52x = 142,490,422.86 × 56,839,036.96
4. Step 4: Simplify right side
   103,257,849.52x = 8,099,018,411,385,570
5. Step 5: Solve for x
   x = 8,099,018,411,385,570/103,257,849.52
6. Step 6: Final answer
   x = 78,434,893.32